How to know what program needs which group to be executed without sudo
In particular I want to create bridges dynamically, but without the need of running it with sudo. I think it's the group netdev.
But is there, and I'm sure there is, a general answer to the question: How can I determine the group needed to run a program without typing sudo in front of the command
permissions groups installed-programs
asked Dec 13 '18 at 14:25
Kev InskiKev Inski
743411
add a comment |
In particular I want to create bridges dynamically, but without the need of running it with sudo. I think it's the group netdev.
But is there, and I'm sure there is, a general answer to the question: How can I determine the group needed to run a program without typing sudo in front of the command
permissions groups installed-programs
asked Dec 13 '18 at 14:25
Kev InskiKev Inski
743411
This lloks like two questions. Run command withoutsudo(use /etc/sudoers.d) for groupnetdevand find which group (top) a command runs under! Which should it be?
– George Udosen
Dec 13 '18 at 14:44
2
I'm not sure that's really the right question: in the example you give, AFAIK it's not about permissions required to run the program, it's about the permissions required for the program to modify a device file
– steeldriver
Dec 13 '18 at 14:47
I think he means how do you know which group you should add to user so the user don't have to use sudo.
– Alvin Liang
Dec 13 '18 at 14:51
@AlvinLiang yes that's what I mean.
– Kev Inski
Dec 13 '18 at 18:11
add a comment |
In particular I want to create bridges dynamically, but without the need of running it with sudo. I think it's the group netdev.
But is there, and I'm sure there is, a general answer to the question: How can I determine the group needed to run a program without typing sudo in front of the command
permissions groups installed-programs
asked Dec 13 '18 at 14:25
Kev InskiKev Inski
743411
In particular I want to create bridges dynamically, but without the need of running it with sudo. I think it's the group netdev.
But is there, and I'm sure there is, a general answer to the question: How can I determine the group needed to run a program without typing sudo in front of the command
permissions groups installed-programs
permissions groups installed-programs
asked Dec 13 '18 at 14:25
Kev InskiKev Inski
743411
asked Dec 13 '18 at 14:25
Kev InskiKev Inski
743411
asked Dec 13 '18 at 14:25
Kev InskiKev Inski
743411
asked Dec 13 '18 at 14:25
Kev InskiKev Inski
743411
asked Dec 13 '18 at 14:25
Kev InskiKev Inski
743411
743411
This lloks like two questions. Run command withoutsudo(use /etc/sudoers.d) for groupnetdevand find which group (top) a command runs under! Which should it be?
– George Udosen
Dec 13 '18 at 14:44
2
I'm not sure that's really the right question: in the example you give, AFAIK it's not about permissions required to run the program, it's about the permissions required for the program to modify a device file
– steeldriver
Dec 13 '18 at 14:47
I think he means how do you know which group you should add to user so the user don't have to use sudo.
– Alvin Liang
Dec 13 '18 at 14:51
@AlvinLiang yes that's what I mean.
– Kev Inski
Dec 13 '18 at 18:11
add a comment |
This lloks like two questions. Run command withoutsudo(use /etc/sudoers.d) for groupnetdevand find which group (top) a command runs under! Which should it be?
– George Udosen
Dec 13 '18 at 14:44
2
I'm not sure that's really the right question: in the example you give, AFAIK it's not about permissions required to run the program, it's about the permissions required for the program to modify a device file
– steeldriver
Dec 13 '18 at 14:47
I think he means how do you know which group you should add to user so the user don't have to use sudo.
– Alvin Liang
Dec 13 '18 at 14:51
@AlvinLiang yes that's what I mean.
– Kev Inski
Dec 13 '18 at 18:11
This lloks like two questions. Run command without
sudo (use /etc/sudoers.d) for group netdev and find which group (top) a command runs under! Which should it be?– George Udosen
Dec 13 '18 at 14:44
This lloks like two questions. Run command without
sudo (use /etc/sudoers.d) for group netdev and find which group (top) a command runs under! Which should it be?– George Udosen
Dec 13 '18 at 14:44
2
2
I'm not sure that's really the right question: in the example you give, AFAIK it's not about permissions required to run the program, it's about the permissions required for the program to modify a device file
– steeldriver
Dec 13 '18 at 14:47
I'm not sure that's really the right question: in the example you give, AFAIK it's not about permissions required to run the program, it's about the permissions required for the program to modify a device file
– steeldriver
Dec 13 '18 at 14:47
I think he means how do you know which group you should add to user so the user don't have to use sudo.
– Alvin Liang
Dec 13 '18 at 14:51
I think he means how do you know which group you should add to user so the user don't have to use sudo.
– Alvin Liang
Dec 13 '18 at 14:51
@AlvinLiang yes that's what I mean.
– Kev Inski
Dec 13 '18 at 18:11
@AlvinLiang yes that's what I mean.
– Kev Inski
Dec 13 '18 at 18:11
add a comment |
1 Answer
1
active
oldest
votes
First run the command (I wish you'd told us which) without sudo. Take note of the device(s) mentioned in the error message.
Use ls -l, followed by the device(s), e.g.
walt@bat:~(0)$ ls -l /dev/ttyS1
crw-rw---- 1 root dialout 4, 65 Dec 13 08:34 /dev/ttyS1
This device allows rw access for the owner (root) and members of the dialout group.
To add yourself to the dialout group,
sudo adduser $USER dialout
To make use of your new dialout group membership, either log out and log in, or newgrp dialout to start a shell with that group membership.
answered Dec 13 '18 at 19:28
waltinatorwaltinator
22k74169
I am looking for a general answer. But let's assume I use the commandbrctl addbr. I prefer using the commandusermodto add a user to a existing group. So your solution basically is:ls - l $(which brctl)or something similar to get the group?
– Kev Inski
Dec 13 '18 at 21:03
I don't think there's general answer. If document does not say anything and you don't guess, how do you know which device it will use?
– Alvin Liang
Dec 14 '18 at 3:22
add a comment |
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1 Answer
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active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
First run the command (I wish you'd told us which) without sudo. Take note of the device(s) mentioned in the error message.
Use ls -l, followed by the device(s), e.g.
walt@bat:~(0)$ ls -l /dev/ttyS1
crw-rw---- 1 root dialout 4, 65 Dec 13 08:34 /dev/ttyS1
This device allows rw access for the owner (root) and members of the dialout group.
To add yourself to the dialout group,
sudo adduser $USER dialout
To make use of your new dialout group membership, either log out and log in, or newgrp dialout to start a shell with that group membership.
answered Dec 13 '18 at 19:28
waltinatorwaltinator
22k74169
I am looking for a general answer. But let's assume I use the commandbrctl addbr. I prefer using the commandusermodto add a user to a existing group. So your solution basically is:ls - l $(which brctl)or something similar to get the group?
– Kev Inski
Dec 13 '18 at 21:03
I don't think there's general answer. If document does not say anything and you don't guess, how do you know which device it will use?
– Alvin Liang
Dec 14 '18 at 3:22
add a comment |
First run the command (I wish you'd told us which) without sudo. Take note of the device(s) mentioned in the error message.
Use ls -l, followed by the device(s), e.g.
walt@bat:~(0)$ ls -l /dev/ttyS1
crw-rw---- 1 root dialout 4, 65 Dec 13 08:34 /dev/ttyS1
This device allows rw access for the owner (root) and members of the dialout group.
To add yourself to the dialout group,
sudo adduser $USER dialout
To make use of your new dialout group membership, either log out and log in, or newgrp dialout to start a shell with that group membership.
answered Dec 13 '18 at 19:28
waltinatorwaltinator
22k74169
I am looking for a general answer. But let's assume I use the commandbrctl addbr. I prefer using the commandusermodto add a user to a existing group. So your solution basically is:ls - l $(which brctl)or something similar to get the group?
– Kev Inski
Dec 13 '18 at 21:03
I don't think there's general answer. If document does not say anything and you don't guess, how do you know which device it will use?
– Alvin Liang
Dec 14 '18 at 3:22
add a comment |
First run the command (I wish you'd told us which) without sudo. Take note of the device(s) mentioned in the error message.
Use ls -l, followed by the device(s), e.g.
walt@bat:~(0)$ ls -l /dev/ttyS1
crw-rw---- 1 root dialout 4, 65 Dec 13 08:34 /dev/ttyS1
This device allows rw access for the owner (root) and members of the dialout group.
To add yourself to the dialout group,
sudo adduser $USER dialout
To make use of your new dialout group membership, either log out and log in, or newgrp dialout to start a shell with that group membership.
answered Dec 13 '18 at 19:28
waltinatorwaltinator
22k74169
First run the command (I wish you'd told us which) without sudo. Take note of the device(s) mentioned in the error message.
Use ls -l, followed by the device(s), e.g.
walt@bat:~(0)$ ls -l /dev/ttyS1
crw-rw---- 1 root dialout 4, 65 Dec 13 08:34 /dev/ttyS1
This device allows rw access for the owner (root) and members of the dialout group.
To add yourself to the dialout group,
sudo adduser $USER dialout
To make use of your new dialout group membership, either log out and log in, or newgrp dialout to start a shell with that group membership.
answered Dec 13 '18 at 19:28
waltinatorwaltinator
22k74169
answered Dec 13 '18 at 19:28
waltinatorwaltinator
22k74169
answered Dec 13 '18 at 19:28
waltinatorwaltinator
22k74169
answered Dec 13 '18 at 19:28
waltinatorwaltinator
22k74169
22k74169
I am looking for a general answer. But let's assume I use the commandbrctl addbr. I prefer using the commandusermodto add a user to a existing group. So your solution basically is:ls - l $(which brctl)or something similar to get the group?
– Kev Inski
Dec 13 '18 at 21:03
I don't think there's general answer. If document does not say anything and you don't guess, how do you know which device it will use?
– Alvin Liang
Dec 14 '18 at 3:22
add a comment |
I am looking for a general answer. But let's assume I use the commandbrctl addbr. I prefer using the commandusermodto add a user to a existing group. So your solution basically is:ls - l $(which brctl)or something similar to get the group?
– Kev Inski
Dec 13 '18 at 21:03
I don't think there's general answer. If document does not say anything and you don't guess, how do you know which device it will use?
– Alvin Liang
Dec 14 '18 at 3:22
I am looking for a general answer. But let's assume I use the command
brctl addbr. I prefer using the command usermod to add a user to a existing group. So your solution basically is: ls - l $(which brctl) or something similar to get the group?– Kev Inski
Dec 13 '18 at 21:03
I am looking for a general answer. But let's assume I use the command
brctl addbr. I prefer using the command usermod to add a user to a existing group. So your solution basically is: ls - l $(which brctl) or something similar to get the group?– Kev Inski
Dec 13 '18 at 21:03
I don't think there's general answer. If document does not say anything and you don't guess, how do you know which device it will use?
– Alvin Liang
Dec 14 '18 at 3:22
I don't think there's general answer. If document does not say anything and you don't guess, how do you know which device it will use?
– Alvin Liang
Dec 14 '18 at 3:22
add a comment |
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This lloks like two questions. Run command without
sudo(use /etc/sudoers.d) for groupnetdevand find which group (top) a command runs under! Which should it be?– George Udosen
Dec 13 '18 at 14:44
2
I'm not sure that's really the right question: in the example you give, AFAIK it's not about permissions required to run the program, it's about the permissions required for the program to modify a device file
– steeldriver
Dec 13 '18 at 14:47
I think he means how do you know which group you should add to user so the user don't have to use sudo.
– Alvin Liang
Dec 13 '18 at 14:51
@AlvinLiang yes that's what I mean.
– Kev Inski
Dec 13 '18 at 18:11